Firstly, your question may be better answered by directing it to rec.windsurfing in the USA via this link: http://groups.google.com/group/rec.windsurfing/topics
My 2 cents:
This F2 model is about 103 litres and will match your weight reasonably well, although in heavy air I suspect your light weight may count against you. It will NOT do everything, but will do most things that you want to do (it is a slalom board with no rocker for waves. It has a slight vee, which aids gybing. Its construction has an ASA skin, which makes it a tough board). The equipment has changed radically over the years and should be easier to use and more versatile.
In answer to your questions:
I am a Neil Pryde user, so my bias is to their products (but others can help you quoting their own experiences).
Fin: one fin can't do it all. The fin used in the F2 is a Powerbox type. I'll suggest 3 fins to cover the sail range of 6.7 down to 5.4.
36/32/28, slightly swept back (and don't forget to buy a couple of fin screws and washers). Also, make sure that the fin screws do not bottom out in the fins when the fin screw is tightened.
Mast base: NP tendon, UXT type
Mast: NP X6/430/SDM. Nowadays, it is vital that the mast and sails come from the same manufacturer, for maximum performance of the sail. If cost is a consideration, you can compromise.
Sails: Hellcat 6.7, Alpha 6.2, Alpha 5.8, Alpha 5.4. Hellcat for slalom, Alphas for slalom/B & J. Downhaul all sails to maximum and adjust power using the outhaul.
Boom: NP X6 160-220 or Maui Sails Wave 160-210. Both booms have fully articulating heads, which reduce point load on the mast, lessening the chance of breakage. Both booms are very easy to adjust lengthways.
Mast extension: NP X3 UXT 34.
Please visit the NP and Maui Sails websites to review my suggestions.
Hope this helps,